Results 161 to 170 of about 31,742 (299)

The Impact of Wheelset Eccentricity on High-Order Polygonal Wear Based on the Theory of Frictional Self-Excited Vibration. [PDF]

Materials (Basel)
Zhao S, Zhao X, He P, Shi F, Zheng J.
europepmc   +1 more source

Track stiffness considerations for high speed railway lines

, 2009
This chapter discusses the importance of the vertical track stiffness as a means to guide high speed railway track bed design and inform decisions regarding track maintenance and renewal.
Burrow, Michael, Dahlberg, Tore, Teixeira, Paulo Fonseca, Berggren, Eric   +3 more
core  

Hierarchical Multi‐Material Architectures With Gradient Design for Dynamic‐Range Flexible Tactile Sensing

Advanced Materials Technologies, EarlyView.
Hierarchical multi‐material TPMS lattices are engineered as flexible tactile sensors by combining soft and stiff elastomeric layers with a conformal conductive coating. The bilayer architecture delivers sensitivity at low pressures while maintaining a broad detectable range under large loads, enabling reliable pressure and vibration monitoring for ...
Reza Noroozi, Domenic Quiquero, Yan Yan Shery Huang, HaoTian Harvey Shi   +3 more
wiley   +1 more source

Changes in Passive Muscle Stiffness Following Biceps Femoris Strain Injury in Track-and-Field Athletes: Cross-Sectional and Longitudinal Analyses. [PDF]

Scand J Med Sci Sports
Kukuchi S, Togashi I, Aoyagi M, Shiota Y, Komatsu T, Takazawa Y, Miyamoto N.   +6 more
europepmc   +1 more source

On the Use of Under-Sleeper Pads in Tracks with Varying Track Stiffness

, 2009
The track stiffness experienced by a train will vary along the track. Sometimes the stiffness variation may be very large within a short distance. One example is when an unsupported sleeper is hanging in the rail. Track stiffness is then, locally at that
Dahlberg, Tore,
core  

Morphology‐Driven Electromechanical Performance of Graphene‐Based Electrofluids for Emerging Soft Electronic Systems

Advanced Materials Technologies, EarlyView.
Here, two types of electronic components are presented: a strain sensor and a stable resistor. Electrofluids properties are tuned to match these behaviors by selecting the type of filler. We show that the morphology of the filler together with its oxygen content are the key parameters to create electrical and mechanical networks with distinct responses.
Dominik S. Schmidt, Paolo Fortugno, Claudia‐F. López‐Cámara, Hartmut Wiggers, Lola González‐García   +4 more
wiley   +1 more source

Failure analysis and structural design improvement of support device for heavy-duty rack and pinion hydraulic actuator. [PDF]

Sci Rep
Zhang D, Luan B, Chen F, Zhu X, Xie Y, Wan Y, Ji S, Wang C, Choi JH.   +8 more
europepmc   +1 more source

A Study of the Effect of Global Track Stiffness and its Variations on Track Performance : Simulation and Measurement

, 2009
This paper investigates the effect of vertical track stiffness, and its variations along the track, on track performance with focus on dynamic responses of track due to parametric excitations.
Berggren, Eric,
core  

Galinstan Liquid Metal/Polyurethane Composite as a Multifunctional Stretchable Electrode and Piezoresistive Strain Sensor With Minimal Drift

Advanced Materials Technologies, EarlyView.
Liquid metal additives are processed in elastomer host resulting in highly conductive and stretchable composites. The material functions as a piezoresistive sensor with minimal drift, low stiffness, and enhanced operating range. The film can replace wires to charge a mobile phone at ∼350% strain and monitors bodily motion in real‐time via a portable ...
Patryk Wojciak, Neeraj Kumar, Toby Hallam, Shayan Seyedin   +3 more
wiley   +1 more source

Failure assessment and evaluation of locomotive coil spring suspension system. [PDF]

Sci Rep
Shanmugam T, Chandran S, Janakiraman R, T KK.   +3 more
europepmc   +1 more source